Classify the input using one of these labels: neutral, positive, and negative. @USAirways Thank you, @USAirways!  Your fare to from DTW to DCA was much lower than @Delta and @SouthwestAir!  Thank you! You won me over!
system
Classify the input using one of these labels: neutral, positive, and negative. @USAirways Thank you, @USAirways!  Your fare to from DTW to DCA was much lower than @Delta and @SouthwestAir!  Thank you! You won me over!
user
positive
assistant
system
Classify the input using one of these labels: neutral, positive, and negative. @USAirways Thank you, @USAirways!  Your fare to from DTW to DCA was much lower than @Delta and @SouthwestAir!  Thank you! You won me over!
user
negative
assistant